If you are considering a promotional USB flash drive campaign, then you will certainly have a lot of options available to you. You will need to choose the model of the flash drive, how you want the device to look, and what design or designs to put on it.Another thing you will have to consider is flash drive capacity. This is basically a measure of how much data an individual flash drive can hold. At Memory Suppliers, we offer a variety of USB flash drive sizes ranging from 64 megabytes to 256 gigabytes. Many models allow you to choose between several different thumb drive sizes, as well.
So, on the very low end of the capacity range, we have a 64 megabyte option. A flash drive capacity that is situated sort of the in the middle would be around 1 gigabyte, which has about 16 times the storage space of the 64 megabyte model. It only gets larger from there, with a 256 gigabyte option that trounces basically all others.
Higher capacity flash drives may get more usage out of them by your prospective clients. Even 1 GB or 2 GB models can provide ample storage space for them. They would be more likely to continually use the drives which also increases the likelihood of accruing more impressions.
USB flash drive business cards, which are designed to amplify the functions of any standard business card with USB storage space, can also have a range of capacities. The Flipper USB Flash Drive, for example, stretches from 64 megabytes to 32 gigabytes. If you want it to strictly mimic a standard business card, then you can opt for the lower end capacity there.
Like MP3 before it, FLAC has been embraced by the music industry as a cost-effective way to distribute CD-or-better-quality music, and it doesn't have the auditory problems of MP3s. FLAC is lossless and more like a ZIP file -- it comes out sounding the same when it is unzipped. Previously the only way to get "lossless" files was via the uncompressed CD formats CDA or WAV, but neither is as space-efficient as FLAC.
FLAC downloads have one major competitor: streaming. While audiophiles are mostly concerned with music bought from music stores like Bandcamp and HD Tracks, it's not the only option available to people interested in high quality music. At the lower end of the scale, Pandora and Rhapsody have been streaming for years at bit-rates between 128kbps and 192kbps but they're no match for lossless FLAC in the audio department.
However, there are several apps available in the iTunes Store that do support the FLAC format and even let you stream them between devices on your network via AirPlay and DLNA. Apps available from the App Store include FLAC Player, MediaConnect and Capriccio.
e-Book readers and tablet computers so far have not seen significant differences in ownership between generations, although members of the oldest generation (adults age 75 and older) are less likely than younger generations to own these devices.
These findings are based on a survey of 3,001 American adults (ages 18 and older) conducted between August 9 and September 13, 2010. The margin of error is +/- 3 percentage points. Interviews were conducted in English and Spanish, and the survey included 1,000 cell phone interviews. (More information is availabe in the Methodology section.)
Even modest quality, high-fidelity stereo sound can use a substantial amount of disk space. For web developers, an even bigger concern is the network bandwidth needed in order to transfer audio, whether for streaming or to download it for use during gameplay. The processing of audio data to encode and decode it is handled by an audio codec (COder/DECoder). In this article, we look at audio codecs used on the web to compress and decompress audio, what their capabilities and use cases are, and offer guidance when choosing audio codecs to use for your content.
Audio codecs typically employ cleverly-designed and highly-complex mathematical algorithms to take source audio data and compress it to take substantially less space in memory or network bandwidth. In addition to choosing the type of encoder to use, you may have the opportunity to adjust the encoder using parameters that choose specific algorithms, tune those algorithms, and specify how many passes to apply while encoding.
The audio frequency bandwidth of a codec indicates the range of audio frequencies that can be represented using the codec. Some codecs operate specifically by eliminating audio that falls outside a given frequency range. There is a correlation between the sample rate and the maximum sound frequency that can be represented by a waveform represented by a codec. At a theoretical level, the maximum frequency a codec can represent is the sample rate divided by two; this frequency is called the Nyquist frequency. In reality, the maximum is slightly lower, but it's close.
There are two flavors of G.711 which indicate the exact mathematical equation for the algorithm: µ-law (commonly used in North America and Japan) and A-law (common in the rest of the world). There is no substantial quality difference between the two laws, and it is simple to transcode audio from one to the other. Nevertheless, it is important to specify which law is in use in any replay application or file format. A-law audio will replay poorly if mistakenly uncompressed with the µ-law algorithm, and vice versa.
Usually the latency is not particularly important when streaming music. Possible exceptions include looped music, where you need music to be able to play back uninterrupted over and over, or when you need to be able to play songs back to back with no gap between them. This can be particularly important for classical music, theatrical soundtracks, and for background music during gameplay.
Voice recording and playback usually needs to be low-latency in order to synchronize with video tracks, or in order to avoid cross-talk or other problems. Fortunately, the characteristics that lead to speech codecs being so efficient storage space-wise also make them tend to be very low latency. If you're working with WebRTC, G.722, for example, has 4 ms latency (compared with over 100 ms for MP3), and AMR's latency is around 25 ms.
SOS contributor Martin Walker replies: I doubt that you'll hear any difference in practice by increasing the bit depth from 16 to 24. As long as you leave a few dB of headroom to give your MP3 encoder some 'space' to perform a clean result, the main decision to be made with MP3s is the target bit-rate. MP3 files can be created at CBR (Constant Bit Rate) values from 8Kbps to 320Kbps. Spoken word is still perfectly intelligible down to about 24Kbps, which is usually perfectly sufficient for podcasts, talk radio, and so on. Solo acoustic music performances could be acceptable at 48Kbps, although 64Kbps is probably more in line with AM radio quality.
Further up the scale, if you want some compression but minimal degradation in sound, 256Kbps is a good compromise compared with CD audio, since the frequency response is generally identical to the original up to about 18kHz, and the difference between the two is barely discernible by most people, even on high-end systems. For ultimate MP3 quality, you could choose 320Kbps, but so few people can hear the difference between this and 256Kbps (or real CDs, for that matter) that it's generally a waste of disk space. 2b1af7f3a8